If you lose your Mathematica CD, or if it becomes damaged or stolen, you can order replacement media from Wolfram Customer Service at a cost of $10 (US dollars) plus applicable tax and shipping.
For orders outside the US or Canada, you will need to contact your local reseller and...

Statistics Commands
Mathematica offers integrated support for both classical statistics as well as for modern large-scale data computations. The provided symbolic characters allow for broader coverage of statistical functions, while incorporating the latest algorithms dealing with numerics and computational geometry. These allow Mathematica to provide extremely accurate and...

The basis for Mathematica to perform its required functions is Mathematica's highly developed symbolic language. This core language utilizes a wide range of programming models, along with a unique concept of symbolic programming that allows for a wide range flexibility for general programming functions as well.
Referenced...